US4254146A - 3-Benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters - Google Patents

3-Benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters Download PDF

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Publication number
US4254146A
US4254146A US06/086,195 US8619579A US4254146A US 4254146 A US4254146 A US 4254146A US 8619579 A US8619579 A US 8619579A US 4254146 A US4254146 A US 4254146A
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US
United States
Prior art keywords
benzoyl
compound
lower alkyl
acid
hydrogen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/086,195
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English (en)
Inventor
David A. Walsh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth LLC
Original Assignee
AH Robins Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AH Robins Co Inc filed Critical AH Robins Co Inc
Priority to US06/086,195 priority Critical patent/US4254146A/en
Assigned to A. H. ROBINS COMPANY, INCORPORATED, A CORP. OF VA reassignment A. H. ROBINS COMPANY, INCORPORATED, A CORP. OF VA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WALSH DAVID A.
Priority to IL61210A priority patent/IL61210A/xx
Priority to PH24690A priority patent/PH15693A/en
Priority to BE0/202458A priority patent/BE885700A/fr
Priority to CH7707/80A priority patent/CH648285A5/fr
Priority to DE19803038966 priority patent/DE3038966A1/de
Priority to FR8022243A priority patent/FR2467840A1/fr
Priority to GB8033628A priority patent/GB2061274B/en
Priority to NL8005750A priority patent/NL8005750A/nl
Priority to IT25409/80A priority patent/IT1133696B/it
Priority to CA000362654A priority patent/CA1146964A/en
Priority to AU63462/80A priority patent/AU534384B2/en
Priority to JP14554980A priority patent/JPS5681540A/ja
Application granted granted Critical
Publication of US4254146A publication Critical patent/US4254146A/en
Priority to CA000417710A priority patent/CA1159079A/en
Assigned to A.H. ROBINS COMPANY, INCORPORATED, A DE CORP. reassignment A.H. ROBINS COMPANY, INCORPORATED, A DE CORP. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). 12-14-89 DELAWARE Assignors: A.H. ROBINS COMPANY, INCORPORATED, A CORP. OF VA (INTO)
Assigned to AMERICAN HOME PRODUCTS CORP. reassignment AMERICAN HOME PRODUCTS CORP. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: "A.H. ROBINS COMPANY, INCORPORATED", A DELAWARE CORP.
Anticipated expiration legal-status Critical
Assigned to AMERICAN HOME PRODUCTS CORPORATION reassignment AMERICAN HOME PRODUCTS CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: A.H. ROBINS COMPANY, INCORPORATED A DELAWARE CORPORATION
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/49—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups
    • C07C205/56—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups having nitro groups bound to carbon atoms of six-membered aromatic rings and carboxyl groups bound to acyclic carbon atoms of the carbon skeleton
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/45—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by at least one doubly—bound oxygen atom, not being part of a —CHO group

Definitions

  • the present invention is concerned with certain novel 3-benzoyl-2-nitrophenylacetic acids and derivatives; metal acid salts, amides, and esters, pharmaceutical methods of treatment, pharmaceutical compositions and use thereof and methods of producing the same and novel intermediates.
  • the 3-benzoyl-2-nitrophenylacetic acids and derivatives are anti-inflammatory agents having minimal side effects on internal administration to living animal bodies.
  • novel compounds exhibiting anti-inflammatory activity of the present invention are 3-benzoyl-2-nitrophenylacetic acids, metal acid salts, amides and esters illustrated generally by the following formula: ##STR2## wherein;
  • R 1 is hydrogen or lower alkyl
  • R 2 is OH, OM, O-lower alkyl, NH 2 , NH-lower alkyl, or --N,N-dilower alkyl,
  • X is hydrogen, halogen, lower alkyl, lower alkoxy, trifluoromethyl or nitro
  • M is a pharmaceutically acceptable cation or a fraction thereof when the cation is multivalent, hydrates thereof and n is 1-3 inclusive.
  • novel compounds of the present invention which are 2-(3-benzoyl-2-nitrophenyl)alkanedioic acid dialkyl ester intermediates in the preparation of the anti-inflammatory compounds of this invention have the formula: ##STR3## wherein R 1 , X and n are as defined hereinabove.
  • Compounds of Formula II wherein lower alkyl is ethyl are preferred.
  • lower alkyl as used herein includes straight and branched chain radicals of up to eight carbon atoms and is exemplified by such groups as methyl, ethyl, propyl, isopropyl, butyl, sec. butyl, tertiary butyl, amyl, isoamyl, hexyl, heptyl and octyl.
  • lower alkoxy has the formula --O-lower alkyl.
  • halogen when referred to herein includes fluorine, chlorine and bromine and iodine, preferably fluorine, chlorine and bromine.
  • pharmaceutically acceptable cation forming salts of the acids and hydrates thereof when referred to herein includes any pharmaceutically acceptable metal cation as exemplified by sodium, potassium, calcium, magnesium, zinc, copper and aluminum and water of hydration. Sodium cation is preferred.
  • Anti-inflammatory activity was demonstrated in laboratory animals using (1) a modification of the Evans-Blue Carrageenan Pleural Effusion Assay of Sancilio, L. F., J. Pharmacol. Exp. Ther. 168, 199-204 (1969), (2) The Method of Walz et al., J. Pharmacol. Exp. Ther. 178, 223-231 for Adjuvant-Induced Arthritis in Rats, and (3) Carrageenan-Induced Foot Edema Method of Winter et al., Proc. Soc. Exp. Biol. Med. 111: 544-547 (1962).
  • the compounds of the present invention When tested in comparison with indomethacin in the Pleural Effusion Assay referred to above, the compounds of the present invention are generally slightly less potent than indomethacin but exhibit only a small fraction of the gastric irritation found with indomethacin.
  • the isomer referred to hereinabove, 4-benzoyl-2-nitrophenylacetic acid was prepared and tested and found to have no anti-inflammatory activity at 100 mg/kg in the Evans-Blue Carrageenan Pleural Effusion Assay compared to strong activity of the compound of Example 4 at 4 mg/kg.
  • Another object is to provide a novel method for the treatment of a living animal body and especially a mammalian body for the purpose of alleviating inflammation with a minimum of undesirable side effects in the gastric and intestinal area utilizing 3-benzoyl-2-nitrophenylacetic acids, amides and esters thereof and therapeutic compositions therefor.
  • the starting materials III for preparing the 3-benzoyl-2-nitrophenylacetic acids are prepared as represented by the following equation: ##STR7## X and n are as defined hereinabove. The procedure for preparing the starting materials III and IV is illustrated more fully in Preparations 1 to 6.
  • the residue was subjected to vacuum distillation at 100° and 0.2 mm Hg pressure.
  • the pot residue was chromatographed on 250 g silica gel to yield 43.6 (63%) of yellow powder which melted at 54°-56° C. after recrystallizing from ligroin.
  • novel compounds of the present invention and the method of preparation is exemplified more fully by the following illustrative examples.
  • the scope of the invention is, however, not limited thereto.
  • aqueous layer was decanted and the gummy residue was dissolved in diethylether.
  • the ether solution was washed with water and saturated sodium chloride solution, dried over sodium sulfate and concentrated to give 3.5 g (95%) of a gray solid, m.p. 102°-104° C. (recrystallized from 2-propanol).
  • the acid chloride of 3-benzoyl-2-nitrobenzeneacetic acid was prepared in the same manner as in Example 7.
  • a solution of 2.0 g (0.006 mole) of the resulting acid chloride in 10 ml THF was treated with 50 ml of absolute ethyl alcohol and 5 ml of triethylamine.
  • the mixture was stirred at ambient temperature for 2 hrs. concentrated, and the residue partitioned between methylene chloride and water.
  • the methylene chloride layer was dried over sodium sulfate and concentrated to give a dark gum as residue.
  • the residue was dissolved in diethylether and filtered to remove dark, insoluble impurities.
  • the filtrate was concentrated to give a gum which eventually crystallized after standing for 3 weeks.
  • the solid was recrystallized twice from isopropyl alcohol (charcoal) to yield 0.4 g (19%) of a pale, yellow powder, m.p. 83°-85° C.
  • the present invention also contemplates novel therapeutic compositions containing the compounds of the invention as active ingredients.
  • Effective quantities of any of the foregoing pharmacologically active compounds may be administered to a living animal body in any one of various ways; for example, orally as in capsules or tablets, parenterally in the form of sterile solutions or suspensions, and in some cases intravenously in the form of sterile solutions.
  • the active ingredient is incorporated in a suitable carrier, illustratively, a pharmaceutical carrier.
  • suitable pharmaceutical carriers which are useful in formulating the compositions of this invention include starch, gelatin, glucose, magnesium carbonate, lactose, malt and the like.
  • Liquid compositions are also within the purview of this invention and suitable liquid pharmaceutical carriers includes ethyl alcohol, propylene glycol, glycerine, glucose syrup and the like.
  • the pharmacologically active compounds may be advantageously employed in a unit dosage of from 0.1 to 250 milligrams or more depending on the size of the animal. For example, a large animal such as a horse may require tablets of 500-1000 milligrams active ingredient.
  • the unit dosage may be given a suitable number of times daily so that the daily dosage may vary from 0.3 to 450 milligrams. Five to 25 milligrams appears optimum per unit dose.
  • the active ingredient constitute an effective amount, i.e., such that a suitable effective dosage will be obtained with the dosage form employed.
  • a suitable effective dosage will be obtained with the dosage form employed.
  • the exact individual dosages as well as daily dosages will, of course, be determined according to standard medical principles under the direction of a physician or veterinarian.
  • the active agents of the invention may be combined with other pharmacologically active agents, or with buffers, antacids or the like, for administration and the proportion of the active agent in the compositions may be varied widely.
  • compositions formed in accordance with this invention are examples of compositions formed in accordance with this invention.
  • Capsules of 5 mg., 25 mg., and 50 mg. of active ingredient per capsule are prepared. With the higher amounts of active ingredient, adjustment may be made in the amount of lactose.
  • Additional capsule formulations preferably contain a higher dosage of active ingredient and are as follows.
  • a typical formulation for a tablet containing 5.0 mg. of active ingredient per tablet follows.
  • the formulation may be used for other strengths of active ingredient by adjustment of weight of dicalcium phosphate.
  • Uniformly blend 1, 2, 4, and 5. Prepare 3 as a 10 percent paste in water. Granulate the blend with starch paste and pass the wet mass through an eight mesh screen. The wet granulation is dried and sized through a twelve mesh screen. The dried granules are blended with the calcium stearate and pressed.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Pain & Pain Management (AREA)
  • Rheumatology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US06/086,195 1979-10-18 1979-10-18 3-Benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters Expired - Lifetime US4254146A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US06/086,195 US4254146A (en) 1979-10-18 1979-10-18 3-Benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters
IL61210A IL61210A (en) 1979-10-18 1980-10-06 3-benzoyl-2-nitrophenylacetic acids and metal salts,amides and esters thereof and pharmaceutical compositions containing them
PH24690A PH15693A (en) 1979-10-18 1980-10-09 3-benzoyl-2-nitrophenylacetic acids,metal salts,amides and esters
BE0/202458A BE885700A (fr) 1979-10-18 1980-10-14 Acides benzoyl-3 nitro-2 phenylacetiques et sels metalliques, amides et esters correspondants, compositions therapeutiques les contenant et procedes de preparation
CH7707/80A CH648285A5 (fr) 1979-10-18 1980-10-15 Acides benzoyl-3-nitro-2-phenylacetiques et sels metalliques, amides et esters correspondants utiles notamment comme medicaments anti-inflammatoires, procede et composes pour leur preparation.
DE19803038966 DE3038966A1 (de) 1979-10-18 1980-10-15 3-benzoyl-2-nitrophenylessigsaeuren und ihre derivate, sowie ihre verwendung als entzuendungshemmende mittel
GB8033628A GB2061274B (en) 1979-10-18 1980-10-17 3-benzoyl-2-nitrophenylacetic acids metal salts amides and esters
JP14554980A JPS5681540A (en) 1979-10-18 1980-10-17 33benzoyll22nitrophenylacetic acid* its metal salt* amide and esters
FR8022243A FR2467840A1 (fr) 1979-10-18 1980-10-17 Acides benzoyl-3 nitro-2 phenylacetiques et sels metalliques, amides et esters correspondants utiles notamment comme medicaments anti-inflammatoires compositions therapeutiques et formes pharmaceutiques les contenant et procedes et intermediaires pour leur preparation
NL8005750A NL8005750A (nl) 1979-10-18 1980-10-17 3-benzoyl-2-nitrofenylazijnzuren, hun metaalzouten, amiden en esters.
IT25409/80A IT1133696B (it) 1979-10-18 1980-10-17 Acidi 3-benzoil-2-nitrofenil-acetici,loro derivati e composizioni farmaceutiche contenenti tali composti
CA000362654A CA1146964A (en) 1979-10-18 1980-10-17 3-benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters
AU63462/80A AU534384B2 (en) 1979-10-18 1980-10-17 Carboxylic derivatives of nitro benzo phenone
CA000417710A CA1159079A (en) 1979-10-18 1982-12-14 3-benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/086,195 US4254146A (en) 1979-10-18 1979-10-18 3-Benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters

Publications (1)

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US4254146A true US4254146A (en) 1981-03-03

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US06/086,195 Expired - Lifetime US4254146A (en) 1979-10-18 1979-10-18 3-Benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters

Country Status (13)

Country Link
US (1) US4254146A (en, 2012)
JP (1) JPS5681540A (en, 2012)
AU (1) AU534384B2 (en, 2012)
BE (1) BE885700A (en, 2012)
CA (1) CA1146964A (en, 2012)
CH (1) CH648285A5 (en, 2012)
DE (1) DE3038966A1 (en, 2012)
FR (1) FR2467840A1 (en, 2012)
GB (1) GB2061274B (en, 2012)
IL (1) IL61210A (en, 2012)
IT (1) IT1133696B (en, 2012)
NL (1) NL8005750A (en, 2012)
PH (1) PH15693A (en, 2012)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5475034A (en) * 1994-06-06 1995-12-12 Alcon Laboratories, Inc. Topically administrable compositions containing 3-benzoylphenylacetic acid derivatives for treatment of ophthalmic inflammatory disorders
WO2002013805A3 (en) * 2000-08-14 2002-05-30 Alcon Inc Method of treating neurodegenerative disorders of the retina and optic nerve head
WO2002013804A3 (en) * 2000-08-14 2002-06-06 Alcon Universal Ltd Method of treating angiogenesis-related disorders using benzoyl phenylacetic acid
US20030187072A1 (en) * 2003-02-14 2003-10-02 Kapin Michael A. Method of treating angiogenesis-related disorders
US20030207941A1 (en) * 2002-05-03 2003-11-06 Bingaman David P. Method of treating vascular endothelial growth factor mediated vascular disorders
US6646003B2 (en) 2001-04-02 2003-11-11 Alcon, Inc. Method of treating ocular inflammatory and angiogenesis-related disorders of the posterior segment of the eye using an amide derivative of flurbiprofen or ketorolac
US20060122277A1 (en) * 2004-12-02 2006-06-08 Alcon, Inc. Topical nepafenac formulations
US20070254939A1 (en) * 2006-04-28 2007-11-01 Alcon, Inc. Formulations Containing Amide Derivatives of Carboxylic Acid NSAIDS for Topical Administration to the Eye
US20080153819A1 (en) * 2006-12-21 2008-06-26 Bingaman David P Methods for treating macular edema and pathologic ocular angiogenesis using a neuroprotective agent and a receptor tyrosine kinase inhibitor
US20080153818A1 (en) * 2006-12-21 2008-06-26 Bingaman David P Methods for preventing inflammation during surgery
US20090105245A1 (en) * 2006-12-21 2009-04-23 Bingaman David P Methods for treating macular edema and ocular angiogenesis using an anti-inflammatory agent and a receptor tyrosine kinase inhibitor
CN109651155A (zh) * 2017-10-11 2019-04-19 浙江瑞博制药有限公司 一种酮基布洛芬中间体及其制备方法和应用

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828093A (en) * 1967-07-31 1974-08-06 Allen & Hanburys Ltd Benzoylphenylacetic acids and related compounds
US4045576A (en) * 1975-08-13 1977-08-30 A. H. Robins Company, Incorporated Anti-inflammatory methods using 2-amino-3-(5- and 6-)benzoylphenylacetic acids, esters and metal salts thereof and the compounds

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828093A (en) * 1967-07-31 1974-08-06 Allen & Hanburys Ltd Benzoylphenylacetic acids and related compounds
US4045576A (en) * 1975-08-13 1977-08-30 A. H. Robins Company, Incorporated Anti-inflammatory methods using 2-amino-3-(5- and 6-)benzoylphenylacetic acids, esters and metal salts thereof and the compounds
US4126635A (en) * 1975-08-13 1978-11-21 A. H. Robins Company, Incorporated 2-amino-3-(5- and 6-)benzoylphenylacetic acids, esters and metal salts thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Beilstein: Organic Chemistry 10, 361 (1910-1919).
Zinic et al., Chem. Absts., 88, 105282(p), 1978.

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1088992C (zh) * 1994-06-06 2002-08-14 阿尔康实验室公司 治疗眼炎的含3－苯甲酰基苯乙酸衍生物的局部给药组合物
US5475034A (en) * 1994-06-06 1995-12-12 Alcon Laboratories, Inc. Topically administrable compositions containing 3-benzoylphenylacetic acid derivatives for treatment of ophthalmic inflammatory disorders
WO2002013805A3 (en) * 2000-08-14 2002-05-30 Alcon Inc Method of treating neurodegenerative disorders of the retina and optic nerve head
WO2002013804A3 (en) * 2000-08-14 2002-06-06 Alcon Universal Ltd Method of treating angiogenesis-related disorders using benzoyl phenylacetic acid
US6638976B2 (en) 2000-08-14 2003-10-28 Alcon, Inc. Method of treating neurodegenerative disorders of the retina and optic nerve head
US6646003B2 (en) 2001-04-02 2003-11-11 Alcon, Inc. Method of treating ocular inflammatory and angiogenesis-related disorders of the posterior segment of the eye using an amide derivative of flurbiprofen or ketorolac
US20050143468A1 (en) * 2002-05-03 2005-06-30 Bingaman David P. Method of treating vascular endothelial growth factor mediated vascular disorders
US20030207941A1 (en) * 2002-05-03 2003-11-06 Bingaman David P. Method of treating vascular endothelial growth factor mediated vascular disorders
US20030187072A1 (en) * 2003-02-14 2003-10-02 Kapin Michael A. Method of treating angiogenesis-related disorders
US20060122277A1 (en) * 2004-12-02 2006-06-08 Alcon, Inc. Topical nepafenac formulations
US7834059B2 (en) 2004-12-02 2010-11-16 Alcon, Inc. Topical nepafenac formulations
US8071648B2 (en) 2004-12-02 2011-12-06 Novartis Ag Topical nepafenac formulations
US8324281B2 (en) 2004-12-02 2012-12-04 Novartis Ag Topical nepafenac formulations
US20070254939A1 (en) * 2006-04-28 2007-11-01 Alcon, Inc. Formulations Containing Amide Derivatives of Carboxylic Acid NSAIDS for Topical Administration to the Eye
US20080153819A1 (en) * 2006-12-21 2008-06-26 Bingaman David P Methods for treating macular edema and pathologic ocular angiogenesis using a neuroprotective agent and a receptor tyrosine kinase inhibitor
US20080153818A1 (en) * 2006-12-21 2008-06-26 Bingaman David P Methods for preventing inflammation during surgery
US20090105245A1 (en) * 2006-12-21 2009-04-23 Bingaman David P Methods for treating macular edema and ocular angiogenesis using an anti-inflammatory agent and a receptor tyrosine kinase inhibitor
CN109651155A (zh) * 2017-10-11 2019-04-19 浙江瑞博制药有限公司 一种酮基布洛芬中间体及其制备方法和应用

Also Published As

Publication number Publication date
JPH0222059B2 (en, 2012) 1990-05-17
NL8005750A (nl) 1981-04-22
IT8025409A0 (it) 1980-10-17
JPS5681540A (en) 1981-07-03
IL61210A0 (en) 1980-12-31
GB2061274B (en) 1983-10-19
AU6346280A (en) 1981-04-30
FR2467840A1 (fr) 1981-04-30
DE3038966C2 (en, 2012) 1989-12-28
CA1146964A (en) 1983-05-24
BE885700A (fr) 1981-02-02
DE3038966A1 (de) 1981-04-30
AU534384B2 (en) 1984-01-26
CH648285A5 (fr) 1985-03-15
GB2061274A (en) 1981-05-13
PH15693A (en) 1983-03-11
FR2467840B1 (en, 2012) 1984-03-30
IT1133696B (it) 1986-07-09
IL61210A (en) 1985-07-31

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AS Assignment

Owner name: A.H. ROBINS COMPANY, INCORPORATED, A DE CORP.

Free format text: CHANGE OF NAME;ASSIGNOR:A.H. ROBINS COMPANY, INCORPORATED, A CORP. OF VA (INTO);REEL/FRAME:005587/0178

Effective date: 19891213

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Free format text: CHANGE OF NAME;ASSIGNOR:A.H. ROBINS COMPANY, INCORPORATED A DELAWARE CORPORATION;REEL/FRAME:010557/0222

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